12221201002101 has 96 divisors (see below), whose sum is σ = 20544610867200. Its totient is φ = 6443087414400.

The previous prime is 12221201002091. The next prime is 12221201002141. The reversal of 12221201002101 is 10120010212221.

It is not a de Polignac number, because 12221201002101 - 2⁵ = 12221201002069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221201002141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 723096751 + ... + 723113651.

It is an arithmetic number, because the mean of its divisors is an integer number (214006363200).

Almost surely, 2^{12221201002101} is an apocalyptic number.

It is an amenable number.

12221201002101 is a deficient number, since it is larger than the sum of its proper divisors (8323409865099).

12221201002101 is a wasteful number, since it uses less digits than its factorization.

12221201002101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19196 (or 19163 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12221201002101 its reverse (10120010212221), we get a palindrome (22341211214322).

The spelling of 12221201002101 in words is "twelve trillion, two hundred twenty-one billion, two hundred one million, two thousand, one hundred one".